Granted Patent
Utility
US 6,775,940 · App. 10/369,088
Motion detecting safety device
Inventors:
William S. Dworzan, Lawrence J. Zadra
Patented Case
View Patent ↗
Granted: Aug 17, 2004
Filed: Feb 14, 2003
Inventors
William S. Dworzan
Lawrence J. Zadra
Assignee (at issue)
S&R Industries Co. Ltd.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.